Matthew Bennett from the Soho Society, which represents residents and businesses in the area, has welcomed the news that more police officers will be put on patrol in the West End.
The Metropolitan Police have announced that there will be 400 extra police officers on the streets on Thursday, Friday and Saturday nights.
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In a wide-ranging Peston on Sunday interview, he said Parliament security needs reviewing and the PM's counter-terror strategy is flawed.
The terror attack carried out by Khalid Masood at Westminster that left four people dead lasted less than two minutes say police.
Two knives were found at the scene in Islington, North London, and the suspects fled on foot before being arrested.